.app-header {
  height: 64px;
  line-height: 64px;
  color: rgba(0, 0, 0, 0.88);
  background: #001529;
}

.center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hd-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 1440px;
  margin: 0 auto;
}

.hd-left {
  
}

.title {
  font-size: 24px;
  color: #fff;
}

.hd-right {
  display: flex;
  align-items: center;
}